| | rb20 problem |  |
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downwiththeRB
Member
Posts : 74
Join date : 2011-10-15
 | Subject: rb20 problem  Sat Mar 24, 2012 6:31 pm | |
| i finally got my rb20 runin again but its not firing on cylinder 3 the plug is gasy.. So i changed the coil and checked for spark it does, swapped the plugs around and getting same results gasy plug cylinder 3 any clues???? | |
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downwiththeRB
Member
Posts : 74
Join date : 2011-10-15
| | Subject: Re: rb20 problem Sat Mar 24, 2012 7:04 pm | |
| it has no compression and the rings r good...
SO. theres spark,fuel, rings r good
the bad no compression | |
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nismokid
Junior member
Posts : 29
Join date : 2011-09-11
Age : 32
Location : Burlington
| | Subject: Re: rb20 problem Sat Mar 24, 2012 9:04 pm | |
| are your valves seating correctly? | |
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downwiththeRB
Member
Posts : 74
Join date : 2011-10-15
| | Subject: Re: rb20 problem Sat Mar 24, 2012 11:51 pm | |
| i just had the head rebuilt
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nismokid
Junior member
Posts : 29
Join date : 2011-09-11
Age : 32
Location : Burlington
| | Subject: Re: rb20 problem Sun Mar 25, 2012 12:34 am | |
| did you rebuild the head yourself? that is all that comes to mind. maybe some one else can chime in. im not saying that if you did rebuild the head yourself that you did it wrong or that anyone did something wrong. its just if your not getting compression and rings are fine, and you have fuel on your spark plug then that points to valves not seating to me. just an opinion. good luck man i will still check in. | |
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s13.240sx
Senior member
Posts : 1113
Join date : 2010-10-01
Age : 111
Location : Menomonee Falls
| | Subject: Re: rb20 problem Sun Mar 25, 2012 11:11 am | |
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downwiththeRB
Member
Posts : 74
Join date : 2011-10-15
| | Subject: Re: rb20 problem Sun Mar 25, 2012 11:41 am | |
| it weird i was driving the car a couple days ago and the only thing i did was take the intake cam off and replace one lifter and put it back together so i have no clue | |
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s13.240sx
Senior member
Posts : 1113
Join date : 2010-10-01
Age : 111
Location : Menomonee Falls
| | Subject: Re: rb20 problem Sun Mar 25, 2012 11:47 am | |
| was the lifter for cylinder #3? If you had that apart and it was fine before that, then I wouild take it back apart and try to see what is different with cylinder #3 compared to the rest. | |
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downwiththeRB
Member
Posts : 74
Join date : 2011-10-15
| | Subject: Re: rb20 problem Mon Mar 26, 2012 12:27 am | |
| i blew air into cylinder 3 with the valves closed postion and i found out my intake valves are leaking so i found the problem in process of tearing it apart | |
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